Parts Cleaning
Overcoming Strict Solvent Cleaning Regulations
Aerospace manufacturer tries unique approach to meet agency regulations
Read MoreCitric Acid Passivation
I would like to set up a citric acid passivation line as follows: heated citric, drag-out tank, three cascading unheated rinse tanks and possibly a heated rinse to help in drying. Am I missing any tanks and or accessories that you would recommend?
Read MoreCopper Sulfate Test for Passivated Parts
Why is the copper sulfate test a common test to know if the passivation process is in good quality?
Read MoreStainless Steel Streaking After Passivation
After passivating 347 stainless steel per AMS700 Type VI there is a stain pattern. On inspection at 10x magnification, I see that the surface is pitted. Process steps are alkaline degrease at 140°F, two rinses, final rinse in reverse osmosis water, nitric strike at 5 percent by volume, then two rinses with the final reverse osmosis (water quality 200 ppm). The stains or discolorations are in a straight line pattern. Any suggestions?
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Protech Purchases Texas' Innotek Powder Coatings
Innotek of Big Spring, Texas specializes in high performance thermoplastic powder coatings.
Read MorePowder Coating Q&A: Powder on Aluminum Extrusion
Q. Can powder coatings meet AAMA 2604 and 2605 standards? What are the strengths and limitations of powder versus liquid coating? Read Rodger Talbert's answer
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ECOAT Q&A: Quoting E-Coat Costs
Q. I have a customer who wants me to quote his product line based on an average square-foot price without analysis of the parts. How can I accomplish this?
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White Haze on Stainless Steel
Has anyone experienced a white haze forming on stainless steel metal surface after cleaning with n-propyl bromide (nPB) solvent?
Read MoreCast Iron, Potable Fresh Water Pump Body
Can you recommend a process to clean rust and “cure” the interior of a pump housing to prevent rusting and not affect the quality of the water?
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Cleaning Limescale from Galvanized Steel
How do you clean white lime scale and rust spots on galvanize?
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